Hot weather also increases dangers for people who must take medicine for high blood pressure,poor blood flow, nervousness or depression.

VOA: special.2010.07.27

It occurs because blood flow gets reduced in that blood vessel and so the heart muscle, which is actively beating all the time, needs large quantities of oxygen provided by blood can't get the blood through the vessel.

发病原因是冠状动脉血流量降低,因为心肌搏动永不停歇,随时需要血液供给大量氧气,发病时血液无法正常流过血管

耶鲁公开课 - 生物医学工程探索课程节选

Still,broken bones should be treated quickly because they can restrict blood flow or cause nerve damage.

VOA: special.2009.02.04

It can help blood flow past a blockage in an artery.

VOA: special.2009.09.01

A stroke is a loss of blood flow in the brain.

VOA: special.2009.09.22

Passengers should also increase blood flow to the legs.

VOA: special.2009.07.14

Plaque inside the artery can restrict blood flow, and makes blood clots more likely.

VOA: standard.2010.03.04

Access to a Caesarean section to relieve the pressure of obstructed labor is the most common way of preventing an unborn child from pressing so tightly in the birth canal that it cuts off blood flow to surrounding tissue.

VOA: standard.2009.12.23

Clots can block the flow of blood to the heart or brain and cause a heart attack or stroke.

VOA: special.2009.10.20

Doctors operated on him later that year to try to improve the flow of blood from his heart.

VOA: special.2010.02.07

The deformed cells block blood vessels and cut off the flow of oxygen to tissue in the body.

VOA: special.2009.12.16

Aspirin thins the blood, so it may be able to flow past the blockage.

VOA: special.2009.10.20

And,it increases the flow of blood and oxygen in the body.

VOA: special.2010.06.08